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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.aaiclient.client.graphinventory.entities;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import org.onap.aaiclient.client.graphinventory.GraphInventoryCommonObjectMapperProvider;
import org.onap.so.jsonpath.JsonPathUtil;
import org.slf4j.Logger;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
public abstract class GraphInventoryResultWrapper<R extends GraphInventoryRelationships<?, ?, ?>>
implements Serializable {
private static final long serialVersionUID = 5895841925807816727L;
protected final String jsonBody;
protected final ObjectMapper mapper;
private final transient Logger logger;
protected GraphInventoryResultWrapper(String json, Logger logger) {
this.jsonBody = json;
this.mapper = new GraphInventoryCommonObjectMapperProvider().getMapper();
this.logger = logger;
}
protected GraphInventoryResultWrapper(Object aaiObject, Logger logger) {
this.mapper = new GraphInventoryCommonObjectMapperProvider().getMapper();
this.jsonBody = mapObjectToString(aaiObject);
this.logger = logger;
}
protected String mapObjectToString(Object aaiObject) {
try {
return mapper.writeValueAsString(aaiObject);
} catch (JsonProcessingException e) {
logger.warn("could not parse object into json - defaulting to empty object");
return "{}";
}
}
public Optional<R> getRelationships() {
final String path = "$.relationship-list";
if (isEmpty()) {
return Optional.empty();
}
Optional<String> result = JsonPathUtil.getInstance().locateResult(jsonBody, path);
if (result.isPresent()) {
return Optional.of(createRelationships(result.get()));
} else {
return Optional.empty();
}
}
protected abstract R createRelationships(String json);
public String getJson() {
if (jsonBody == null) {
return "{}";
} else {
return jsonBody;
}
}
public Map<String, Object> asMap() {
return asBean(new TypeReference<Map<String, Object>>() {}).orElse(new HashMap<>());
}
public <T> Optional<T> asBean(Class<T> clazz) {
if (isEmpty()) {
return Optional.empty();
}
try {
return Optional.of(mapper.readValue(this.jsonBody, clazz));
} catch (IOException e) {
return Optional.empty();
}
}
public <T> Optional<T> asBean(TypeReference<T> reference) {
if (isEmpty()) {
return Optional.empty();
}
try {
return Optional.of(mapper.readValue(this.jsonBody, reference));
} catch (IOException e) {
return Optional.empty();
}
}
public boolean isEmpty() {
return jsonBody == null;
}
@Override
public String toString() {
return this.getJson();
}
}
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